Hello
For a project i am trying to control SR830 lock in but im having problems with the visa drivers. im getting an error on the read visa.
when i try sending commands using NIMAX it works sometimes and im able to send commands and read data however whenever i run any of the examples provided with the drivers i get a read visa error.
A similar probelm happened when i was doing the same for keithely source meter. for the keithey the problem was the null rs232 connection i had and i replaced it with a straight one and it worked.
for the lock in i suspect its a similar cable problem. i am using a DB9 to DB25 convertor and i have a usb 2.0 pr rs232 as the cable im using.
Do converters like the one mentioned above have types like null and straight ?
would using a GPIB cable be easier than dwelling over this ?
i appreciate any help i can get.
sorry if there is anther post about this topic, i didnt have the time to look thought them.
thanks in advance for the help.